[Solved] 6 PIN header schema for Chinese no name wifi bulbs with ESP8285

Hardware
1

Hi guys. There are these bulbs:

20210918_130931
20210918_1309314032×2268 1.22 MB

20210918_131022
20210918_1310222268×4032 1.09 MB

With ESP8285 chipset:

IMG_20210905_180316
IMG_20210905_1803161506×1901 668 KB

They have “top” board LED part, connected with “bottom” board power stuff part, via 6 PIN header:

20210918_131046
20210918_1310464032×2268 2.47 MB

There are also RX, TX, +3.3V, GND marked on bottom board:

IMG_20210918_132335
IMG_20210918_1323352123×1398 566 KB

But something is telling me that 6 PIN header can be used for flashing Tasmota or ESPurna with this little dude (CH340G), in order that soldering being completely avoided.:

IMG_20210918_133555
IMG_20210918_1335552000×1125 703 KB

Does anybody know to tell me which PIN is which, for both bulb header and USB to serial programmer header (or point me to some datasheets, I hadn’t success to find them).

For easy referencing, I marked them with numbers if someone knows the answer out of box.

IMG_20210918_133929
IMG_20210918_1339294000×2250 2.01 MB

Many thanks in advance.

2

Ignore that “something”.

That pin header is not for programming. It clearly carries the R, G, B, CW, WW and V+ lines for driving the LEDs.

You will have to solder to the pads marked TX, RX, GND and 3.3V

3

Thanks a lot @tom_l , will proceed with soldering. Marking this as “Solved”, cause soldering to already marked PINs cannot be wrong way.